It is a body tissue that has the ability to contract. It shortens and generates force. It relaxes and returns to its original length. Muscles move joints, stabilize the body, move air and food through the organs, act as valves for bladder, bowel and other organs. They control movement of the eyes. They help us express ourselves by changing the shape of our faces (smile, frown, etc).
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5

Potentially:
Possibly, scoliosis sually begins with a rotation of the vertebrae. This causes a rib hump, otherwise known as an asymmetric trunk rotation. There are also patients with neuromuscular conditions such as cerebral palsy that have muscular imbalance and can have scoliosis. Please consider being checked, a simple xray will definitively answer the question of whether or not you have scoliosis.
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6

It could be GERD:
Gastroesophageal reflux disease (gerd) is a chronic digestive disease that occurs when stomach acid or, occasionally, bile flows back (refluxes) into your food pipe (esophagus). The backwash of acid irritates the lining of your esophagus and causes gerd signs and symptoms.
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7

See below:
It could be any of several things. You have symptoms which could be serious and should see your physician. He/she will listen to you, do a physical examinarion, run some tests, and let you know what's going on.
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10

Well no:
This is not the way the anatomy works.
Your stomach is inside your abdomen. If you mean stomach muscles as the muscles of yorurabdominal wall, they also don't really attach to your ribs.
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Also known as myalgia, muscle pain is a result of overuse or stretching of the muscle. Muscle pain can occur either becuase of an infection or because of a mechanical injury. It can be acute, or chronic pain that lasts for a while.
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